iPhone Slowdown

By MacRumors Staff
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Apple in iOS 10.2.1 introduced power management features for older iPhones to prevent unexpected shutdowns during times of peak power draw on devices with degraded batteries.

These power management features throttle the processor on older iPhones with less than optimal batteries, resulting in slower performance. Though introduced early in 2017, the power management features were not widely publicized until late 2017, leading many customers to feel deceived by Apple.

Apple has apologized for not better explaining how battery health could impact performance and has since implemented a policy offering no-questions-asked $29 battery replacements for the iPhone 6 and later.

iOS 11.3 introduced more detailed information about battery health, letting customers know if the state of their battery is impacting processor performance. The update also allows the power management feature to be turned off. Initially, the iPhone 6, 6 Plus, 6s, 6s Plus, 7, 7 Plus, and first-generation SE were included, with the processor only slowed down occasionally when the battery can't meet the power demands of system-intensive tasks. The iPhone 8, 8 Plus and X were included as of iOS 12.1, and the iPhone XS, XS Max, and XR were added with iOS 13.1.

Replacing a degraded battery with a fresh battery successfully eliminates the power management feature and restores a device that was previously being throttled to its full performance capacity.

Apple is facing multiple lawsuits and government inquiries about its decision to throttle processor performance, but the company is adamant that the feature was not introduced to prompt customers to buy a new iPhone. Instead, it is meant to extend the life of an iPhone as long as possible, because in Apple's opinion, an iPhone that occasionally sees slower performance is preferable to one that shuts down.

To regain customer trust following criticism over its failure to disclose the throttling, Apple offered $29 battery replacements through the end of 2018 as well as a $50 credit to customers who paid for an out-of-warranty battery replacement for the iPhone 6 and later in 2017.

iPhone Slowdown Guides

How to Disable Apple's Performance Management Features in Older iPhones in the iOS 11.3 Beta

Tuesday February 6, 2018 12:53 pm PST by
Starting with the second beta of iOS 11.3, Apple has introduced a new "Battery Health" feature that's designed to provide you with more information about the state of your battery and whether or not it's impacting device performance. If your iPhone has a degraded battery that is leading to throttling issues, the "Battery Health" section will let you know about it, and it will provide an...

iPhone Slowdown Articles

Arizona Attorney General Leading Multi-State Probe on Apple iPhone Throttling

Wednesday July 29, 2020 12:22 pm PDT by
Apple is facing another probe on its iPhone "throttling" practices, this time from Arizona attorney general Mark Brnovich, reports Reuters. The probe, which may also involve Texas, has been ongoing since October 2018 and is attempting to determine whether Apple's deliberate slowing of older iPhones "violated deceptive trade practice laws." Last week, reports suggested that Texas was...

iPhone Users Who Experienced 'Batterygate' Can Now File to Receive Around $25 Settlement From Apple

Monday July 13, 2020 6:50 am PDT by
Earlier this year, Apple agreed to settle a U.S. class action lawsuit that accused the company of "secretly throttling" older iPhone models. Now, eligible iPhone owners are beginning to be notified about their legal rights and options. Under the proposed settlement, Apple will provide a cash payment of approximately $25 to each eligible iPhone owner who submits a claim, with its total payout ...

Apple Agrees to Pay Up to $500 Million to Settle Class Action Lawsuit Over 'Secretly Throttling' Older iPhones

Monday March 2, 2020 7:35 am PST by
Apple has agreed to pay up to $500 million to settle a long-running class action lawsuit in the United States that accused the company of "secretly throttling" older iPhone models, as reported by Reuters. Each affected iPhone user in the class would receive $25, according to the preliminary settlement, reviewed by MacRumors. The amount could increase or decrease slightly depending on legal...

Apple Fined 25 Million Euros in France for Slowing Down Older iPhones With iOS Update

Friday February 7, 2020 3:22 am PST by
Apple has been fined 25 million euros by a French consumer fraud group for intentionally slowing down some iPhone models with a software update. The Directorate General for Competition, Consumption and the Suppression of Fraud (DGCCRF), which is part of the country's economy ministry, concluded that Apple had failed to inform users that iOS updates to older iPhones could slow down their...

Apple Faces Yet Another Class Action Lawsuit Over 'Secretly Throttling' Older iPhones

Thursday August 1, 2019 8:49 am PDT by
A group of 18 individuals have filed a class action lawsuit against Apple this week in a Northern California federal court, accusing the company of "secretly throttling" older iPhones starting in January 2017. The complaint, seen by MacRumors, refers to the iPhone slowdown saga as "one of the largest consumer frauds in history, affecting hundreds of millions of mobile devices across the...

Apple Pledges to Be 'Clearer and More Upfront' With iPhone Users About Battery Health and Performance in UK

Wednesday May 22, 2019 7:38 am PDT by
The UK's competition watchdog today announced that Apple has formally agreed to be "clearer and more upfront with iPhone users" about battery health and performance to ensure compliance with consumer law, as the BBC reports. In a pledge submitted to the Competition and Markets Authority or CMA, Apple committed to several actions it has already taken, including providing consumers with "clear ...

Apple Forced to Add Notice About iPhone Slowdown Saga on Italian Homepage

Monday February 11, 2019 5:45 am PST by
Last year, the Italian Competition Authority hit Apple with a 10 million euro fine over "dishonest commercial practices" related to an iPhone performance management system it introduced in iOS 10.2.1 without informing customers. The antitrust watchdog said the update was a form of planned obsolescence. As a result of the investigation, Apple has been forced to add a consumer protection...

Apple Replaced 11 Million iPhone Batteries in 2018, Up From 1 to 2 Million

Monday January 14, 2019 9:22 pm PST by
Apple replaced a total of 11 million iPhone batteries under the $29 battery replacement program that was introduced at the end of 2017 and ran through 2018 before ending on December 31, 2018. The tidbit was shared by Tim Cook at a recent all-hands meeting with Apple employees and relayed by Daring Fireball's John Gruber, who heard the information from an unnamed source. Apple replaced...

Make Sure to Get Your $29 iPhone Battery Replacements Soon as Apple's Discount Program is Set to End on December 31

Friday November 30, 2018 10:48 am PST by
If you have an iPhone that needs a battery replacement, it's a good idea to get it fixed soon as Apple's $29 battery replacement program is set to end on December 31, 2018. Apple is still offering $29 battery replacements for the iPhone SE, 6, 6 Plus, 6s, 6s Plus, 7, 7 Plus, 8, 8 Plus, and X. All of these devices are eligible for a discounted $29 battery following the processor slowdown...

Italy Fining Apple 10M Euros for 'Dishonest Commercial Practices' Related to iPhone Throttling

Wednesday October 24, 2018 5:22 am PDT by
Nearly one year after reports began circling about Apple's throttling of older iPhones with degraded batteries, Italy's antitrust authority is now fining Apple 10 million euros (about $11.5 million USD) for "planned obsolescence" of its smartphones (via The Korea Herald). The fine on Apple follows Italy's investigation into iPhone battery slowdowns that began back in January, and the Italian...

Apple Shares New Pricing for Battery Replacements Starting January 1, 2019

Wednesday September 12, 2018 3:03 pm PDT by
Since the end of 2017, Apple has been offering battery replacements for a discounted price of $29 to appease customers who were upset at device throttling resulting from degraded battery performance. When announcing the new inexpensive battery replacement pricing, Apple promised to offer the discounted price for the entirety of 2018. Now that we're nearing the end of the year, Apple has...

Apple CEO Tim Cook 'The Smartphone Market is Very Healthy'

Tuesday July 31, 2018 3:29 pm PDT by
During today's earnings call covering the third fiscal quarter of 2018, Apple CEO Tim Cook was questioned about the health of the smartphone market and the impact the company's choice to offer low-cost battery replacements might have on replacement cycles. In response, Cook said that he believes the smartphone market is "very healthy. "It's the best market to be in for someone in the business...

78 More Customers Sue Apple Over 'Secretly Throttling' Older iPhones in Latest Class Action

Thursday July 5, 2018 9:24 am PDT by
Class action lawsuits continue to mount against Apple over the iPhone Slowdown saga. For those unaware, late last year, Apple admitted that it throttles the maximum performance of some older iPhone models with chemically aged batteries when necessary in order to prevent the devices from unexpectedly shutting down. Apple views this as a feature intended to provide the best user experience...

Apple Executive Greg Joswiak Dismisses Planned Obsolescence as 'Craziest Thinking in the World'

Wednesday June 6, 2018 9:36 am PDT by
Daring Fireball writer John Gruber sat down with Apple's VP of marketing Greg Joswiak and VP of AR/VR engineering Mike Rockwell at the California Theatre on Tuesday for a live recording of his The Talk Show podcast. MacRumors was in attendance during the interview, which reflected on a wide range of topics, including augmented reality, privacy, the latest software updates, and other...

Apple Offering $50 Credit to Customers Who Paid for iPhone 6 and Later Battery Replacements From January to December 2017

Wednesday May 23, 2018 9:03 am PDT by
Apple is providing a $50 credit to all customers who paid for an out-of warranty battery replacement for an iPhone 6 or later between the dates of January 1, 2017 and December 28, 2017, the company announced today. The $50 credit is an extension of Apple's $29 battery replacement program, which went into effect in December of 2017 to provide lower-cost battery replacement options to customers...

Apple Says Inventory of All iPhone Replacement Batteries Now Available Without Delay

Wednesday May 9, 2018 11:56 am PDT by
iPhone users who have been waiting to take advantage of Apple's discounted battery replacement offer may be in luck. Apple has confirmed that "service inventory of all iPhone replacement batteries is now available without delay," in an internal memo distributed to Apple Stores and its network of Apple Authorized Service Providers on April 27. The document was obtained by MacRumors from a...

Israeli Consumer Protection Bureau Launches Investigation Into Apple Over iPhone Slowdown Controversy

Tuesday April 10, 2018 4:31 pm PDT by
Israel is the latest country to launch an investigation into Apple over the ongoing iPhone slowdown issue that saw the company fail to adequately inform users about a 2017 software update that could result in slower performance on some older iPhones with degraded batteries. The Israeli Consumer Protection on Fair Trade Authority on Tuesday said it had launched an investigation into Apple over...

iPhone Slowdown Lawsuits Ordered to Be Centralized in Northern California District Court

Wednesday April 4, 2018 1:10 pm PDT by
Apple's legal battle against dozens of iPhone slowdown class action lawsuits will take place in a courtroom near its headquarters. The U.S. Judicial Panel on Multidistrict Litigation today disclosed it has ordered [PDF] all iPhone slowdown lawsuits to be transferred to the U.S. District Court for Northern California and, with the consent of that court, assigned to the Honorable Judge Edward...

Apple Testifies on iPhone Throttling Before Canadian Parliamentary Committee

Thursday March 1, 2018 2:43 pm PST by
Apple's Canada division and Geekbench maker John Poole today testified before a House of Commons committee on industry, science, and technology in Canada to address the power management features Apple introduced in older iPhones in iOS 10.2.1, reports iMore. Poole was on hand because back in late December, he used his Geekbench platform to confirm the link between degraded iPhone batteries in...

Wait Times for iPhone Battery Replacements Increasing

Tuesday February 27, 2018 2:51 pm PST by
Customers aiming to get a battery replacement for an older iPhone with a degraded battery are facing longer wait times than ever, according to new data shared by Barclays. Average wait times for a new battery have jumped up to 2.7 to 4.5 weeks based on a series of Apple Store checks conducted by Barclays analyst Mark Moskowitz (via Business Insider). That's up from around 2.3 to 4.5 weeks...